v2.0a1

[2.0a1] - 2025-08-08

This release creates the casm-project package, which makes it easier to construct, fit, and use a cluster expansion in CASM version >= 2 by:

• providing quick access to the most commonly used methods,
• automatically reading project data needed by those methods from a CASM project directory,
• automatically writing the results to the standard location in a CASM project directory.

Using casm-project to store project data in standard locations makes it easier to understand what was done and share the project with others.